The greatest danger of a 16 hour flight is from impaired blood circulation in your legs, from sitting that long, which can cause an embolism. Try to periodically exercise your legs. Other than that, sleep when you can, and perhaps bring a good book with you. The person sitting next to you on the plane may or may not be worth talking to, so you can't count on that.
The flight time is 16 hours, 52 minutes.
The flight time is approximately 16 hours, 24 minutes.
16 hours by direct flight
This flight takes around the 16 hours and 30 minutes.
16 hours
About 16 hours.
About 16 hours.
16
16 hours
Approx. 16 hours.
The flight duration is approximately 16 hours, 13 minutes.
The flight time is 5 hours, 16 minutes.